Effect of copper tailing content on corrosion resistance of steel reinforcement in a Salt Lake environment

doi:10.3390/ma12193069

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	Effect of copper tailing content on corrosion resistance of steel reinforcement in a Salt Lake environment
	Zhang, Liming 1; Li, Jia 2; Qiao, Hongxia3
	2019-10-01
发表期刊	Materials
卷号	12 期号:19
摘要	With the increasing proportions of copper tailings of concrete in the Qinghai Salt Lake area of China, there arises the problem of corrosion of steel reinforcement in concrete structures. In this study, we determine the corrosion rate (CR), crack width, and corrosion potential of the steel reinforcement with copper tailing. This was achieved by conducting the constant-current accelerated corrosion test with different proportions of copper tailing in the brine environment of the Qinghai province. The results demonstrate that the corrosion potential (Ecorr) and the passivation area of the polarization curve decrease with the increase in the corrosion time, and the corrosion rate and crack width increase with the increase in the corrosion time. When the corrosion time is the same, the corrosion potential, crack width, and corrosion depth of the reinforcement decrease first and then increase with the increase in the copper tailing powder content. When the copper tailing powder content is 20%, the above parameters reach the minimum value. In the salt lake environment of Qinghai, China, the copper tailing powder content is recommended to be 20%. © 2019 by the authors.
关键词	Concrete reinforcements Concretes Copper corrosion Corrosion rate Corrosion resistance Lakes Accelerated corrosion tests Constant current Corrosion of steel Corrosion potentials Different proportions Polarization curves Salt lakes Steel reinforcements
DOI	10.3390/ma12193069
收录类别	EI ; SCIE
语种	英语
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering ; Physics
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering ; Physics, Applied ; Physics, Condensed Matter
WOS记录号	WOS:000493308500018
出版者	MDPI AG, Postfach, Basel, CH-4005, Switzerland
EI入藏号	20194307578328
EI主题词	Steel corrosion
EI分类号	412 Concrete - 539.1 Metals Corrosion - 951 Materials Science
来源库	Compendex
分类代码	412 Concrete - 412.2 Concrete Reinforcements - 539.1 Metals Corrosion
引用统计	被引频次：3[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	https://ir.lut.edu.cn/handle/2XXMBERH/114286
专题	图书馆土木工程学院
通讯作者	Zhang, Liming
作者单位	1.Nanchang Inst Technol, Sch Civil & Architectural Engn, Nanchang 330099, Jiangxi, Peoples R China; 2.Nanchang Inst Technol, Library, Nanchang 330099, Jiangxi, Peoples R China; 3.Lanzhou Univ Technol, Sch Civil Engn, Lanzhou 730050, Gansu, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Liming,Li, Jia,Qiao, Hongxia. Effect of copper tailing content on corrosion resistance of steel reinforcement in a Salt Lake environment[J]. Materials,2019,12(19).
APA	Zhang, Liming,Li, Jia,&Qiao, Hongxia.(2019).Effect of copper tailing content on corrosion resistance of steel reinforcement in a Salt Lake environment.Materials,12(19).
MLA	Zhang, Liming,et al."Effect of copper tailing content on corrosion resistance of steel reinforcement in a Salt Lake environment".Materials 12.19(2019).